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Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error
From: |
Aurelien Jarno |
Subject: |
Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error |
Date: |
Sun, 10 Apr 2011 15:24:15 +0200 |
User-agent: |
Mutt/1.5.20 (2009-06-14) |
On Sun, Apr 10, 2011 at 02:29:59PM +0200, Artyom Tarasenko wrote:
> Trying to boot some proprietary OS I get qemu-system-sparc64 crash with a
>
> tcg/tcg.c:1892: tcg fatal error
>
> error message.
>
> It looks like it can be a platform independent bug though, because
> when a '-singlestep' option IS present, qemu doesn't crash and seems
> to translate the code properly.
>
> (gdb) bt
> #0 0x00000032c2e327f5 in raise () from /lib64/libc.so.6
> #1 0x00000032c2e33fd5 in abort () from /lib64/libc.so.6
> #2 0x000000000051933d in tcg_reg_alloc_call (s=<value optimized out>,
> def=0x89d340, opc=INDEX_op_call, args=0x10acc98, dead_iargs=3) at
> qemu/tcg/tcg.c:1892
> #3 0x000000000051a557 in tcg_gen_code_common (s=0x10b8940,
> gen_code_buf=0x40338b60 "address@hidden 3\355I\211\256\220") at
> qemu/tcg/tcg.c:2099
> #4 tcg_gen_code (s=0x10b8940, gen_code_buf=0x40338b60 "address@hidden
> 3\355I\211\256\220") at qemu/tcg/tcg.c:2142
> #5 0x00000000004d38f1 in cpu_sparc_gen_code (env=0x10cce10,
> tb=0x7fffe91bc218, gen_code_size_ptr=0x7fffffffd9b4) at
> qemu/translate-all.c:93
> #6 0x00000000004d1fd7 in tb_gen_code (env=0x10cce10, pc=18868776,
> cs_base=18868780, flags=15, cflags=0) at qemu/exec.c:989
> #7 0x00000000004d4029 in tb_find_slow (env1=<value optimized out>) at
> qemu/cpu-exec.c:167
> #8 tb_find_fast (env1=<value optimized out>) at cpu-exec.c:194
> #9 cpu_sparc_exec (env1=<value optimized out>) at qemu/cpu-exec.c:556
> #10 0x0000000000408868 in tcg_cpu_exec () at qemu/cpus.c:1066
> #11 cpu_exec_all () at qemu/cpus.c:1102
> #12 0x000000000053c756 in main_loop (argc=<value optimized out>,
> argv=<value optimized out>, envp=<value optimized out>) at
> qemu/vl.c:1430
>
> I inspected ts->val_type causing the abort() case and it turned out to be 0.
>
> The last lines of qemu.log (without -singlestep)
> IN:
> 0x00000000011fe9f0: rdpr %pstate, %g1
> 0x00000000011fe9f4: wrpr %g1, 2, %pstate
> --------------
> IN:
> 0x00000000011fe9f8: ldub [ %o0 ], %o1
> 0x00000000011fe9fc: mov %o1, %o2
> 0x00000000011fea00: rdpr %tick, %o3
> 0x00000000011fea04: cmp %o1, %o2
> 0x00000000011fea08: be %icc, 0x11fea00
> 0x00000000011fea0c: ldub [ %o0 ], %o2
>
> Search PC...
> Search PC...
> Search PC...
> Search PC...
> Search PC...
> Search PC...
> --------------
> IN:
> 0x00000000011fe9f8: ldub [ %o0 ], %o1
> 0x00000000011fe9fc: mov %o1, %o2
> 0x00000000011fea00: rdpr %tick, %o3
> 0x00000000011fea04: cmp %o1, %o2
> 0x00000000011fea08: be %icc, 0x11fea00
> 0x00000000011fea0c: ldub [ %o0 ], %o2
>
> 110521: Data Access MMU Miss (v=0068) pc=00000000011fe9f8
> npc=00000000011fe9fc SP=000000000180ae41
> pc: 00000000011fe9f8 npc: 00000000011fe9fc
>
> IN:
> 0x00000000011fea00: rdpr %tick, %o3
> 0x00000000011fea04: cmp %o1, %o2
> 0x00000000011fea08: be %icc, 0x11fea00
> 0x00000000011fea0c: ldub [ %o0 ], %o2
> --------------
> IN:
> 0x00000000011fea10: brz,pn %o2, 0x11fe9f8
> 0x00000000011fea14: mov %o2, %o4
> --------------
> IN:
> 0x00000000011fea18: rdpr %tick, %o5
> 0x00000000011fea1c: cmp %o2, %o4
> 0x00000000011fea20: be %icc, 0x11fea18
> 0x00000000011fea24: ldub [ %o0 ], %o4
> --------------
> IN:
> 0x00000000011fea28: brz,pn %o4, 0x11fe9f4
> 0x00000000011fea2c: wrpr %g0, %g1, %pstate
> <EOF>
>
> The crash is 100% reproducible and happens always on the same place,
> so it's probably a pure TCG issue, not related on getting the
> external/timer interrupts.
>
> Do you need any additional info?
>
What would be interesting would be to get the corresponding TCG code
from qemu.log (-d op,op_opt).
--
Aurelien Jarno GPG: 1024D/F1BCDB73
address@hidden http://www.aurel32.net
- [Qemu-devel] tcg/tcg.c:1892: tcg fatal error, Artyom Tarasenko, 2011/04/10
- Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error,
Aurelien Jarno <=
- Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error, Artyom Tarasenko, 2011/04/10
- Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error, Blue Swirl, 2011/04/10
- Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error, Artyom Tarasenko, 2011/04/10
- Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error, Blue Swirl, 2011/04/10
- Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error, Artyom Tarasenko, 2011/04/10
- Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error, Igor Kovalenko, 2011/04/10
- Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error, Artyom Tarasenko, 2011/04/10
- Message not available
- Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error, Artyom Tarasenko, 2011/04/10
- Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error, Igor Kovalenko, 2011/04/10
- Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error, Artyom Tarasenko, 2011/04/11